Add Mailgun detection

src/drivers/webextension/images/icons/Mailgun.svg

@@ -0,0 +1,3 @@
+<svg width="366" height="366" viewBox="0 0 366 366" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M183 151.4C200.4 151.4 214.6 165.5 214.6 183C214.6 200.4 200.5 214.6 183 214.6C165.6 214.6 151.4 200.5 151.4 183C151.4 165.6 165.6 151.4 183 151.4ZM75.4 183C75.4 123.6 123.6 75.4 183 75.4C242.4 75.4 290.6 123.6 290.6 183C290.6 186.9 290.4 190.8 290 194.6C289.2 205.1 296.9 213.1 307.3 213.1C325 213.1 326.9 190.3 326.9 183C326.9 103.5 262.5 39.1 183 39.1C103.5 39.1 39.1 103.5 39.1 183C39.1 262.5 103.5 326.9 183 326.9C225.2 326.9 263.2 308.7 289.5 279.8L319.1 304.6C285.7 342 237.1 365.5 183 365.5C82.2 365.5 0.5 283.8 0.5 183C0.5 82.2 82.2 0.5 183 0.5C283.8 0.5 365.5 82.2 365.5 183C365.5 223.5 346.2 256.4 307.5 256.4C290.4 256.4 280.1 248.6 274.4 239.9C255.4 270.4 221.6 290.7 183 290.7C123.6 290.6 75.4 242.4 75.4 183ZM183 114C144.9 114 114 144.9 114 183C114 221.1 144.9 252 183 252C221.1 252 252 221.1 252 183C252 144.9 221.1 114 183 114Z" fill="#AF252A"/>
+</svg>

src/technologies.json

@@ -8430,6 +8430,19 @@
       "icon": "SendGrid.svg",
       "website": "https://sendgrid.com/"
     },
+    "Mailgun": {
+      "cats": [
+        75
+      ],
+      "description": "Mailgun is a transactional email API service for developers.",
+      "dns": {
+        "TXT": [
+          "mailgun\\.org"
+        ]
+      },
+      "icon": "Mailgun.svg",
+      "website": "https://www.mailgun.com/"
+    },
     "Amazon SES": {
       "cats": [
         75